Home / 71,677.44-98,911.80-39,845.52

Finding the Fourth Proportional to 71,677.44, 98,911.80 and 39,845.52

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Solution

The fourth proportional to 71,677.44, 98,911.80 and 39,845.52 is: 54,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,677.44 : 98,911.80 = 39,845.52 : x
  2. Step 2: Convert to fraction form
    71,677.44/98,911.80 = 39,845.52/x
  3. Step 3: Cross multiply
    71,677.44x = 98,911.80 × 39,845.52
  4. Step 4: Simplify right side
    71,677.44x = 3,941,192,105.14
  5. Step 5: Solve for x
    x = 3,941,192,105.14/71,677.44
  6. Step 6: Final answer
    x = 54,985.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.